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Ricoh photocopier/printers error codes can be divided into three levels (A, B,C). The “A” level codes have high risk and involve the fusing unit problems. The machine operation is disabled. Only a service engineer should reset and repair this error. The B level errors are caused by one or more specific units. The machine operates as usual, excluding the related units. The C level errors have no effect on machine operation except to display a warning on the control panel. Error levels can be checked in service manuals under “troubleshooting” section.SC543, SC545 codes:SC543, SC545 are most common errors in Ricoh products. These errors indicate a problem in fixing temperature or thermistor. It is strongly recommended to call an authorized technician to reset and fix this problem because defected parts must be replaced/repaired before reseting these errors otherwise it may result in fire or other damages.

Error Code List:

Ricoh error codes are generally categorized into 9 categories. Each category starts with a unique number starting from 1 to9. A brief description is given below:

(a). 1xx Series (Scanning Related Problems)

SC 101

Exporsure Lamp error

SC107

Scanner Lamp Regulator Malfunction

SC120

Scanner Home position Error

SC121

Scanner home position error 2

SC 122

Scanner home position error 3

SC 123

Scanner home position error 4

Sc 124

Scanner Motor encoder signal error

SC 125

Scanner motor speed error1

SC 126

Scanner motor speed error2

SC 127

Scanner motor encoder rotating direction error

Sc 128

Scanner motor start error

SC 129

Scanner motor speed control error

Sc 130

SBU defective error/ Scanner start abnormal

SC 131

F-Gate Asserted during shading

SC 142

White level detection error

SC 143

SBU Auto adjust error

SC 144

SBU Connection error

SC 150

Scanner ROM Mismatch

SC 170

Scanner DA1 Abnormal/Video processing

SC 171

Scanner DA2 abnormal

SC 173

Scanner Lamp regulator adjustment error

SC 174

Scanner DA2 abnormal

SC 181

CIS Lamp abnormal

SC 183

CIS auto adjustment error

SC 184

CIS Transmission error

SC 191

Bar Code Scanning error

SC 192

Automated SBU adjustment error/Bar code number is different

SC 193

Image Transfer Error

SC 194

SBU White level detection

SC 195

DF Gate Assert error

SC 196

DF Gate Negate error

SC 197

DF Gate Error

SC 198

Memory card error

SC 199

DF Scanning finish error

Troubleshooting Tips:

SC101:Exposure Lamp error:

Exposure Lamp defective

Check exposure lamp connections and the stabilizer board.

Dirty scanner mirror or scanner mirror out of positions.

SBU board defective

SC143:SBU white/black level correction error:

Exposure lamp defected.

Dirty white plate.

BICU Board defective

SC198:Memory address error:

The firmware program of the engine and the controller do no match.

Controller Board defective

(b) 2XX Series For Laser Unit Problems

Code

Possible Cause

SC201

Polygon Motor

SC220

Laser Sync Detect

SC221

Scan length detection

SC240

LD Power Supply Excessive

SC260

HP Sensor

SC261

HP Sensor not turning off

SC285

Line position Error

In some models (AF 2015 etc) 2xx error series does not exist.

(c) 3xx and 4xx Series Image Development Problems.

SC320

Polygonal mirror motor

SC322

Laser synchronization

SC324

LD Drive current over

SC325

Magnification Correction

SC328

LD Unit Home Position Error2

SC330

LD Unit no initial setting

SC343

Yellow Sleeve Motor Lock

SC344

Magenta Sleeve Motor Lock

SC364

Hard Disk Drive

SC365

Image Storage Address Error

SC366

Hard Disk Bad Sector Maximum

SC371

Yellow TD Sensor Detection Error

SC372

Cyan sensor Detection Error

SC373

Magenta TD Sensor Detection Error

SC401

Transfer Output Abnormal

SC402

Transfer Roller Leak

SC403

Transfer Belt Position Sensor

SC405

Transfer Belt Position Abnormal

SC420

Cleaning Motor Lock

SC430

Quenching Lamp

SC440

Main Motor Lock

SC441

Development Motor Lock

SC457

Image Transfer Belt Cleaning Unit Position Error

SC460

Thermistor1 Temperature

SC461

Thermistor2

SC490

Toner Supply Motor Leak

Exhaust Fan Motor Lock

Main Fan abnormal

Transfer Bias Paper Attraction Roller Bias Leak

Troubleshooting Tips:

SC302:Charge Roller Current leakage

Clean the machine well.

Charge roller damaged.

Poor connection of the PCU

SC392:Toner density sensor initial setting is not performed correctly.

No developer

Developing roller does not turn.

Development roller coupling gear is not correctly attached.

Poor connection of PCU

ID sensor defective

SC402: Transfer roller lead error 2

High voltage supply board defective

Transfer/Separation unit set incorrectly

Transfer roller damaged

(d) 5xx Series For Paper Feed and Fusing Problems

Code

Possible Causes

SC500

Main motor/transport motor lock/Fusing motor error

SC501

Drawer 1 lift motor malfunction

SC502

2nd or 1st tray lift motor malfunction

SC503

Drawer3(or 2nd) lift motor error

SC504

Drawer 4 or 3rd lift motor malfunction

SC505

LCC Tray malfunction

SC506

Paper tray motor lock

SC507

LCT main/feed motor lock

SC508

Rear fence drive motor

SC509

Drawer 3 LCT right fence error

SC510

LCT lower limit error

SC511

LCC motor lock

SC515

Drawer left guide drive motor error, Tandem rear fence motor error

SC516

Drawer 1 side guide motor error

SC520

Paper tray error/Duplexer jogger drive motor error

SC521

Duplexer jogger driver motor error 2

SC522

Duplex-Side fence jogger HP error

SC524

Duplex-End fence jogger HP error

SC530

Bypass feed motor lock/fusing fan motor error

SC531

Fuser/Duplexer reversing motor error

SC541

Fuser thermistor open/ Hot Roller thermistor open

SC542

Fuser Temperature warm-up error

SC543

Fuser overheat error1

SC544

Hot roller fusing lamp lower limit temperature detected

SC545

Fuser lamp overheat error 2

SC546

Fuser ready temperature malfunction

SC547

Zero cross signal malfunction/ Fusing temperature does not increase

SC548

Fusing installation error

SC550

Fusing web end

SC551

Pressure roller thermistor open

SC552

Pressure roller warm up error

SC553

Pressure roller overheat

SC554

Pressure roller low temperature abnormal

SC555

Pressure roller ready temperature abnormal

SC557

Pressure roller temperature does not increase

SC558

Zero cross signal abnormal

SC590

Exhaust/Fusing fan motor error/used toner collection motor error

SC591

Toner supply motor error

SC592

Toner bank motor error

SC599

Copy exit tray motor lock

Troubleshooting Tips:

SC500:Too much load on the drive mechanism

Some gears or other rotating parting has been jammed.

Developing unit is over toned.

Main motor or its driving board is defective.

Before replacing motors or sensors, first check the mechanical load.

SC 541:Fusing thermistor open:

Machine is plugged into low line voltage.

Fixing thermistor is defective or out of position.

Some loose connection

Power Supply board defective

SC590:Left exhaust fan motor error

Loose connection of the exhaust fan motor.

Too much dust in the fan causing too much load on the motor driver.

(e) 6XX: Communication errors

Code

Possible Cause

SC600

Communication Error Between Main Control and Operation Panel Boards

SC634

Key/ Card Counter Device Error

SC636

Communication Error Between BICU & Paper Feed Control PWA

SC696

Communication Error Between Engine Boad and Finisher

Troubleshooting Tips:

SC621:ADF connection error

An incorrect ADF is installed on the machines.

The connector of the ADF is removed while the machine is in the energy save mode.

(f) 7XX: Peripherals Problems

Code

Possible Cause

SC700

RADF Original Pickup Malfunction

SC702

RADF Feed Motor Lock

SC703

RADF Transport Motor Lock

SC704

RADF Original Exit Motor Lock

SC705

RADF Bottom Plate Motor

SC721

Sorter Bin Motor

SC722

Finisher/Sorter Jogger Motor

SC727

Finisher Stapler Rotation error

SC728

Finisher paper stack height error

SC733

Finisher Lower Tray lift Motor

SC760

ADF Gate Abnormal

SC770

Display Editor Abnormal

Troubleshooting Tips:

SC700:ADF pickup problem

Home sensor is defective

ADF board or pickup roller mechanism is defective.

SC733:Finisher lower tray lift motor

stack height sensor or lower tray limit sensor may cause this problem

(g) 8XX: Controller Errors

Code

Possible Cause

SC800

Startup Without Video output End

SC804

Startup Without Video Input End

SC818

Watchdog Error, Software Malfunction

SC819

Kernel Mismatch, Download Firmware again

SC820

Self Diagnostic Error,Download Firmware again

SC855

Wireless LAN card problem detected

SC857

USB Interface Error Detected

SC868

Incorrect Data is detected in the SD card

SC870

Address Book Data stored on the hard disk was abnormal

Troubleshooting Tips:

SC 826:Self diagnostic error:

NVRAM on the controller board is defective and must be replaced.

SC855:Wireless LAN card error

Poor Connections between LAN card and the printer

Defective controller board.

Defective wireless LAN card.

Disclaimer:

Please note that this detail is just for information. Do not try to repair a machine if you are not a qualified technician. Technicians should also not take this information as a substitute of technician manuals.

How do I fix an Aficio MP201 giving an SC 391 error code?? I changed the high voltage supply board, I checked the pcu for a loose connection but it still throws out the error code. Can you kindly please help!!!